describe "Pry::Pager" do describe "PageTracker" do before do @pt = Pry::Pager::PageTracker.new(10, 10) end def record_short_line @pt.record "012345678\n" end def record_long_line @pt.record "0123456789012\n" end def record_multiline @pt.record "0123456789012\n01\n" end def record_string_without_newline @pt.record "0123456789" end def record_string_with_color_codes @pt.record(CodeRay.scan("0123456789", :ruby).term + "\n") end it "records short lines that don't add up to a page" do 9.times { record_short_line } expect(@pt.page?).to equal false end it "records short lines that do add up to a page" do 10.times { record_short_line } expect(@pt.page?).to equal true end it "treats a long line as taking up more than one row" do 4.times { record_long_line } expect(@pt.page?).to equal false record_long_line expect(@pt.page?).to equal true end it "records a string with an embedded newline" do 3.times { record_multiline } expect(@pt.page?).to equal false record_short_line expect(@pt.page?).to equal true end it "doesn't count a line until it ends" do 12.times { record_string_without_newline } expect(@pt.page?).to equal false record_short_line expect(@pt.page?).to equal true end it "doesn't count ansi color codes towards length" do 9.times { record_string_with_color_codes } expect(@pt.page?).to equal false record_string_with_color_codes expect(@pt.page?).to equal true end end end